NCG510200_Regional Office Historical File Pre 2018

SGC4PRIORITY PROJECT: Yes No X
o: Permits and Engineering Unit
Water Quality Section
Attention: Jay Lucas
Date: May 26, 1994
m NPDES STAFF REPORT AND RECOMMENDATION
County. Mecklenburg
MRG No. -5
Permit No. NCG510 00
FART I GENERAL INFORMATION
1. Facility and Address: The Southland Corporation
,9201 Lawyers Road
Charlotte, North Carolina
. Bate of Investigation: April 26, 1994
. Report Prepared By.* Samar Bou-Gha al , Env. Engineer
. Persons Contacted and Telephone Number: Mr. Beau Hodge,
Project Manager with Groundwater Technology Inc., tel# (919)
46-7.
. Directions to Site: The Southland Corporation is located in
the east quadrant of the intersection of Lawyers Road (SR
3128) and Lebanon Road (SR ) in eastern Mecklenburg
County.
6. Discharge oin( List for all discharge points:
Latitude: 350 11' 1311 Longitude: 800 411 22"
Attach a US.G.S. map extract and indicate treatment facility
site and discharge point on map.
USES Quad o. G 16 NW USES Name: Mint Hill, N.C.
. Site size and expansion are consistent with application?
Yes X No If No, explain.
8. Topography* (relationship to flood plain included): Sloping
west toward an intermittent stream at the rate of 3 to 4% e The
site is not Located in a flood plain.
9. Location of nearest dwelling: Several within 1000 feet of the
discharge point.

Page Two
1 . Receiving stream or affected surface waters: Unnamed
tributary to McAlpine Creek:
a.. Classification.
b River Basin and Subbasin No.. Catawba River Basin,
030834
c Describe receiving stream features and pertinent
downstream uses. discharge will take place into an on
-
site storm sewer drop inlet. Discharged effluent would
then flow approximately 1500 ft in a storm surer pipe
before direct discharge into an unnamed tributary to
McAlpine Creek.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: Approximately
0.0072 MCD (intimate resign, Capacity)
b. What is the current permitted capacity of the wastewater
treatment facility? NA.
C. Actual treatment capacity of the current facility
(current design capacity)?'' N:
. rate() and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: NIA.
e.' Please provide a description of existing or substantially
constructed wastewater treatment facilities. NIA
f. Please provide a- description of proposed wastewater
treatment facilities. The proposed groundwater treatment
system will consist of monitoring wells, recovery wells,
oil/water separator, air stripper, and an activated
carbon adsorption unit.
g. Possible toxic impacts ,to surface waters. Effluent from
similar facilities have failed toxicity testing.-
h. Pretreatment ]Program (PcTs only). NA.
. Residuals handling and utilization/disposal schemes Generation
of residuals is not expected.
. Treatment plant classification (attach completed rating
sheet): Proposed, no :rating given.
NPDES Permit Staff Report
Version 10/92
Page 2

. SIC Code(s;): 5541
Page Three
Primary: 66 Secondary:
Main Treatment. Unit Code: 56000
PARS' III - OTHER PERTINENT INFORMATION
I.• Is this facility being constructed with Construction Gram
Funds or are any public monies involved (municipals only)?
/A.
2. Special monitoring or limitations (including toxicity)
requests: Toxicity testing is not included in the general
Permit. However, effluents from similar wastewater facilities
have been found to have toxic characteristics. A toxicity
testing requirement is recommended.
. Important SOC, JOC or Compliance Schedule dates: (please
indicate) N/A.
. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available. Please provide
regional perspective for each option evaluated.
Spray .irrigation: This option has been evaluated by the
permittee and found not to be an alternative.
Connection ;to regional Sewer System: According to applicant,
the Mecklenburg County PQTW`will not accept treated
groundwater from the above site.
Discharge to an infiltration gallery;: The use of an
infiltration gallery was evaluated and found not to be an
alternative
. Air; Qualityand/or Groundwater concerns or hazardous waste
utilized at this facility that may impact water quality, air
quality or groundwater' Contaminated groundwater already
exists at the site. GW comments should be obtained. No
hazardous waste will be generated. Air Quality Permit for this
facility maybe required by Mecklenburg County.
PART IV - EVALUATION AND RECOMMENDATIONS
Groundwater Technology, Inc., on behalf of the Southland
NPDES Permit Staff Report
Version 0/9
Page

Corporation is requesting an NPT ES permit for the treatment and
discharge of contaminated groundwater at the subject facility. The
contaminated groundwater resulted from a leaking underground
storagetank (UST) containing gasoline. :
The proposed method of treatment is typical of treatment
methods; used by the petroleum industry for groundwater remeiation
activities.
It is recommended that an NPDES permit be issued.
jA
Sign ature, CIU-Oport Preparer Date
Water Quality gica nperiscr Date
NPES Permit Staff Report
Version 10/92
Page

M
I NEW. M1614ky,
regarding this application, please contact me at 9191733-5083.
Sincerely,
Jaf'B�Iuca's'
Enviromnental Engineer
P,O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 105% post -consumer paper

DE!
GROUNDWATER
iTECHNOLOGY
rQcandaterTechnology, Inc.
1000 Perimeter Park Drive, Suite 1, Morrisville„ NC 27560 USA
Tel: [phone]
March 11, 1994
Mr. Dave Goodrich
Supervisor NPDS Group
NCDEHNR Division of Environmental Management
512 Salisbury Street
Raleigh, North Carolina 2611
RE: Application' for NPDES general Permit and ,Authorization to Construct - The Southland
Corporation, Soil and groundwater Treatment System, Charlotte, North Carolina
Dear Mr. Goodrich.
On behalf of our client, The Southland Corporation, this letter transmits 3 copies of plans and
specifications for a soil and groundwater treatment facility at the referenced site. Also enclosed
are 3 copies of the Corrective .Action Plan dated September 29, 1993 and a notice from The
Southland Corporation indicating that Groundwater Technology may act on behalf of The Southland
Corporation. Further, a check for $400 for the I PDES General Permit fee and an additional check
for 150 for the Authorization to Construct are enclosed,
467-2227 or the above address. Thank you for your timely attention to this important project.
Sincerely,
GROUNDWATER TECHNOLOGY, INC
Stephanie R. Knight
Project Engineer
cc. Rod Towns, The Southland Corporation
Beau Hodge, GTI
project file
Offices throughout the VS, Canada and Overseas

Mr.
NPI
Div.
Nor
He
1
Rah
THE
BOUT LANC
CORPORATION
It 2, 1994 RECEIVED
AR -,
Dave Goodrich, Supervisor
,S Permit Group
lion of Environmental Management
h Carolina Department of Environment,
Ith, and Natural Resources
". Salisbury Street
gh, North Carolina 27626-
A
Former Southland Facility #17168
9201 Lawyers Road
Charlotte, Mecklenburg County, North Carolina
Mr. Goodrich -
ROM
Mr. Beau Hodge, P.G.
Groundwater Technology, Inc.
1000 Perimeter Park Drive, Suite I
Morrisville, No
rth o Carolina 27560
[phone]
1 for your cooperation in this matter.
,ntal Coordinator
tral Region
1, Hilliard, The Southland Corporation
in Hodge, Groundwater Technology, Inc.
North Haskell As�cnuc t Dallas, TX 75204-290 + Mailing Addrew Box i I 1 / Dallas TX
' 1.1-828-701

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury t • Raleigh, North Carolina 2 611 -
James G. Martin, Governor A. Preston Howard, Jr., P.E.
William W. Cobey, Jr., Secretary Acting Director
NOTICE OF TE I
Natinal P llutant Discharge Eli nation System
Application for Coverage under General Permit NCG51 , Groundwater rernediation projects
designed to treat petroleum contaminated groundwater.
1. Name, Address, location, and telephone number of facility requesting Permit.
t�
A. Official Name:
B. Mailing Add
(1)Street Address,'
(2)City,
(3)State,
(4)Zip;
(5)County,
C. Location. (Attach map delineating general facility location)
(1)Street Address;
(2)City,_
(3)State;
WCounty,
D. Telephone Number; " )
. Facility Contact:
A. Name,
B. Title;
C. Company Name;
D. Phone Number; r ) c
3. Application type (check appropriate, selection):
A. N or Proposed;
B. Existing, If previously pennitted, provide permit number
and issue date .
C. Modification,
(Describe the nature of the modification):
. Description of discharge
A. Please state the number of separate discharge paints.
1,K; 2A 1; 3J 1,° 4,C 1: [ I.
Page 1

NOTE: Construction of any wastewater treatment facilities require sub ; "ssion of three (3) sets of plans
and specifications along with their application. Design of treatment facilities must comply
with requirement 1 A NCAC 2H .01318. If construction applies to the discharge, include the
three is of plans and -specifications with the application.
5. What is the nature of the business applying for this permit.
6. Name of receiving water or waters;, Classification:
(Attach a USGS topographical map with all discharge point(s) clearlymarked)
7. is the discharge directly to the receiving water?(Y,N).
lf,no, state specifically the discharge point. Mark clearly the pathway to the potential receiving
waters on the site rrtap. (This includes tracing the pathway of the storm sewer to its discharge
point, if a storm seweris the only viable means of discharge.) _•
8. Please address possible non -discharge alternatives for the following optic
A. Connection to a Regional Sewer `Collection System,
B. Subsurface Disposal; r
C. SprayIrrigation;

EE--]D� .,
TECHNOLOGY, INC.
OIL RECOVERY SYSTE
PROJECT PROJECT NUMBER

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SaWls, chain of custody number ;Z'0735.
This Certificate shall not be reproduced, except in full,
without the written approval of the lab.
Quality Assurance Officer: Page 2 (last page)
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HOOVER GROUR, .
ON A}f I N M NT SYSTEMS I V I S 1 0 N 3t1-990*4111
P.C. C39 89--777-2823
VERNA PARK, MARYLAND 21146 FAX [phone]
U/L LISTED J E CUBE SPECIFICATIONS
J/L Listed Lube Cubes are built, tested and labelled per-U L l aboveground
snksfor flammable andcombustible liquids.) A -30 PSI Hydrotest was performed
►n our tank design to test its structural integrity. Our doubly wall tank design must
lso withstand 15 PSI between the inner and outer shell. Lube Cube meets all
e u%re ,eats of N.F.P.A. 33.
ach tank is individually tested at 5 PSI air and soap suds are applied to detect weld
-am pinhole yaks before leaving the factory.
largest opening on top is the emergency relief gent. Each tank also has a 21"
or normal venting.
Serving the industry with Quality Tanks and Systems

LEELAM MINIMUM CLEARANCE
• FRONT is ii.
TOP 12 in,
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LEFT bin,
RIGHT bin.
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AERATION TRAYS DISCHARGE PUMP 1, DRAWING REPRESENTS A UNIT TYPICAL TO THE `CONSULT N.E.EP. FOR AMPACITIES AND OTHER
BLOWER FEED PUMP SPECIFICATIONS YOU REQUESTED. MINOR CHANGES VOLTAGE OPTIONS
DEMISTER PAD ADDITIONAL BLOWER MAY RESULT IN THE MANUFACTURING PROCESS,
PIPING EXP MOTORS
SPRAY NOZZLE BLOWER STARTISTQP PANEL 2.OPTIONAL ITEMS ARE SHIPPED "LOOSE EXCEPT
WATER LEVEL SIGHT TUBE CONTROL PANEL WHEN A FRAME IS SUPPLIED BY N.E,EP.
GASKETS —MAIN DISCONNECT SWITCH
LATCHES IS COMPONENTSIREMOTE MOUNT
INTERMITTENT OPERATION NCRTH EAST ENVIRONMENTAL PRODUCTS, INC.
STROBE UGW CONNECTION INFORMATION I?TECHNOLOGY DRIVE
ALARM HORN WE LEBANON, NH 03784
AIR PRESSURE GAGE
LOW AIR PRESSURE ALARM SWITCH
HIGH WATER LEVEL ALARM SWITCH
DISCHARGE PUMP LEVEL SWITCH
WATER PRESSURE GAGES
DIGITAL WATER FLOW INDICATOR
AIR FLOW METER
—TEMPERATURE GAGES
LINE SAMPLING PORTS
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WASHER WAND
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March 10, 11994
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. Stephnie Knight
Groundwater TachnaloGy, IAC-
10()0Perimeter Park Drive, Suite 1
Morrisville,; NC 2 660
Dear Ms. KniCht.
chloraethane .000096 parts per million 1ppm►
18 .001 ppm
is ppm
.088 ppm
Aalene .162 pp
.012 ppm
etecl or unsuspected adsorbate.
i any questions or requite additional information, please feel free to contact me at t�1!
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WUSTRIES
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STANDARD FEATURES
Influent 1- 12" Sch. 80 PVC
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Effluent I•Ilr Sch. 80 PVC
SPECIRCATIONS
MAXIMUM REC©MM NDEi3 < O RA-IM: 25 C M
POUNDS OF GAC. No SHIPPING WRIGHT (Pounds). 1,300
OP RA;I'IO EIGIrr (Pounds). 3,535 OVERALL IIEIGI-rP 96"
TANK DIAMETER (I.I7.). 35. 5" BED VOLUME (CU. .). 28.5
BED DEPTH (IN): 4 " BED SURI*ACE (So. IN.). 1004
HYDRAULIC LOADING RATE (GPM/SQ. Fr) CONTACT E (MINUTES). 8.3
BASED €3N 25.0 GPM: 3.8 CAR13ON TYPE.Coal-Base
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TECHNOLOGY, NC.
OIL RECOVERY SYSTEMS
PROJECT PROJECT NUMBER
SUBJECT BY DATE
PAGE CF
ENGINEER NAME
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GROUNDWATER
TECHNOLOGY, INC.
OIL RECOVERY SYST MS
PROJECT PROJECT NUMBER
SUBJECT BY DATE
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1 i 2 0 1 MILE
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1 5 0 1 KILOMETER
SITE LOCATION MAP
SOUTHLAND CORPORATION
QUADRANGLE LOCATION 9201 LAWYERS ROAD
CHARLOTTE, NORTH CAROLINA
MINT HILL, NC
7.5* QUADRANGLE
3$0-8-- CF•-2
1:11:1 GROUNDWATER
1988 00 TECHNOLOGY, IN

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1000 Perimeter Park Drive, Suite 1, Morrisville, NC 27560
April 27, 1994 Tel. (919) 6 ^2227 F ; (9 9)467-2 9
Mr. Samar:Bou-Ghazal
Water Quality Section
Department of Environment, Health, and
Natural Resources
919 N. Main Street
Mooresville, North Carolina 28115
RE: Amendment to CAR
Former 7-Eleven Facility #17168
9201 Lawyers Road, Charlotte, NC
Dear Mr. ou-Ghazale:
This letter serves an amendment to the corrective action plan (CAP) submitted by The Southland
Corporation (Southland) and concerns the discharge from the proposed groundwater treatment
system. The originally proposed discharge point in the CAP was an infiltration gallery located
hydraulically upgadient of the recovery wells. A long -duration; pump test was conducted to
determine the effectiveness of groundwater extraction and to determine bulk aquifer characteristics.
Calculations for the mounding analysis in the CAP made an assumption that the vertical hydraulic
conductivity was an order of magnitude lower than the horizontal hydraulic conductivity calculated
from the long -duration pump test. Based on this ;assumption, a trench with'a surface area of 210
ft' would have been sufficient to accept the anticipated flow rate of 1440 gallons per day.
Groundwater Technology, Inc (GTI) contracted Soil and Environmental Consultants (SE) of
Raleigh, NC to measure the hydraulic conductivity in the vadose zone at various depths. A copy of
the S&EC report is presented in Attachment A. The results of the report indicate that vertical
hydraulic conductivity in the vadose'one is greater than two orders of magnitude lower than the
horizontal conductivity measured during the long -duration pump test. The results conclude that in
order to use a three-foot deep infiltration gallery, the minimum size of the gallery would have to be
24,000 ftz. This area is larger than the area of the entire site, and therefore, infiltration is not
viable.
Spray irrigation is not viable because the surface area is not sufficient to accept the load.
Furthermore, the surface is capped and would not allow infiltration. The Mecklenburg County
POTW will not accept treated groundwater from this site. The remaining and most viable option for
effluent discharge is a NPDE a - General permit. Proposed routing for the effluent discharged is to
an on -site storm sewer drop inlet. Discharged effluent would then flow approximately 2,300 feet in
a storm sewer pipe maintained by Mecklenburg County before direct discharge into McAlpine Creek.
An application was submitted to the NPDES Permit Group on March 11, 1994. A site map with a
offices throughout the U.S., Canada and Overseas

Mr. Samar Bou-Ghazale
April 27, 1994
Page
layout of the remediation system components and the proposed NPDES discharge point is presented
in Attachment B.
Three copies of this letter will be sent to the NPDES Group in Raleigh and one copy will be sent to
Allen Schiff in the Mooresville Groundwater Section. if you require any further information
regarding this site, please contact me at ( 1 ) 467-22 7.
Sincerely,
GROUNDWATER TECHNOLOGY, INC.
SEAL
a, 611 OG �M- 041-,
Beau Hodder P
Hyclrogeologiste�
Project Manager
Attachments
cc. ` Rod Towns, Southland (2)
Dave Goodrich, NPDES Group, Raleigh (3)
Alien Schiff, Groundwater Section, Mooresville
file \docYawcap.add
EGROUNDWATER
TECHNOLOGY NOLOGY

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Attachment A
Steal Science Report
, j I ; t UNDWATER
�TECHNOLOGY

Lebanon Road/Lawyers Road
(S U HLAND CORPORATION)
Mint Hill, NC
Hole HqriXon Depth Range at (ftldaY)
1 Bt3 35-41 " .008-1
+C2 5-5 ,. .01
3 C 1 60-66" .02
4 C2 71.77" .03

2/ 18/94
Deep Baring - Lebanon Road/La Road 7-1
Mint Hill
Depth
Color
S ct�ur
Horizon
Texture
©„ l
ARC Gravel
"W'
2.SYR4/6
nubk
St1
day loam
4"-23'"
1 R4/8 w/7.SYRS/6 mottles
nubk
St2
clay
23".36"
1 /8 w/7.SYRS/6 and
wsbk
Bt3
clay loam
14YR7/ 1 mottles
2 ehroma at
23"
36"-4S"
7. S/6 w/ 2.SYR4/8
wsbk common
8C1
sandy day loam
mottles
Mn streaks
4S'''•58'''
tOYR6/8 w/2.SYR418 and
w bk
SC2
sandy clay loam
I OYR7/1 mottles
S8"-791`mottled
14YR6/8 IOYR7/1
structure
C1
loam
and 2.SYRS/6
79"-115"
mottled IOYR7/8 and
structureless
C2
fine sandy loam
1 RS/1
115"-1 19"
mottled .SYRS/8 and IOYR
structureless
C3
fine sandy'loa
/
1 `91'-1 S'S"
1 O R8/2 w/ few blade and
structureless
C4
to silt loam
7.SYRS/8 mottles
1 S'S"-
stra ' ted like rock few red
structureless
CS
sandy loam
mottles mostly 1 OYRS/2 and
1O R6►/4

Prastic Yariabilitw m Holes within 1 W of deep Boring
'1) Below red Bt in one hole was massive 2:1 mottled clay from b t
B' +
(21 t heartiaA .vs*,ar r f xr t:. `...ram: i.._
water table m hole 15' away was at 111 101,

Attachment B
Figure
GROUNDWATER
TECHNOLOGY

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PROJECT NO,: CONTRACT:
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